<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport"
        content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Title</title>
</head>
<body>
<script>
  let m = new Map()
  let zm = {
    name: 'zmouse',
    age: 30
  }
  let rc = {
    name: 'reci',
    age: 20
  }
  m.set(zm, 'miaov')
  m.set(rc, 'miaov2')
  console.log(m)
</script>
</body>
</html>